Table 2 Comparison of the fine crackle characteristics in the honeycombing and the non-honeycombing groups

 Early / Mid / Late

20 / 4 / 0

12 / 27 / 8

< 0.001

 Total (inspiratory phase)

21.5 [14.7–30.3]

8.0 [3.3–13.7]

< 0.001

 Early onset timing

23.8 [16.1–30.8]

17.5 [11.8–20.0]

0.026

 Mid onset timing

12.8 [8.5–16.3]

6.3 [3.0–9.7]

0.099

 Late onset timing

–

3.0 [2.0–7.0]

–

 F99

841 [782–870]

689 [674–821]

0.001

 F95

527 [442–679]

411 [362–457]

0.003

 F50

259 [233–289]

237 [220–267]

0.052

 2CD

5.5 [5.4–6.4]

7.0 [5.5–7.8]

0.046

 IDW

1.1 [1.0–1.5]

1.5 [1.0–1.5]

0.362

 LDW

1.8 [1.5–2.0]

2.0 [2.0–2.5]

0.004

 A₂/A₁

0.75 [0.68–0.81]

0.75 [0.62–0.84]

0.553

 A₃/A₁

0.30 [0.22–0.38]

0.27 [0.20–0.41]

0.344